Governor throttle



March 3, 1931. DEAN 1,794,835

GOVERNOR THROTTLE Filed May 23, 1929 2 Sheets-Sheet 2 gwuomto c 'j Z A? 7 6 l7. flea n w (mum,

Patented Mar. 3, 1931 UNITED ElTATES MARCUS DEAN, OF AI'IKIN, MIIJ'NESOTA GOVERNOR THROTTLE Application filed May 23, 1929. Serial No. 365,543.

This invention relates to governor throttles and has relation more particularly to a device of this kind especially adapted for use in connection with internal cmnlmstion engines to 5 maintain a uniform motor speed with the motor under or free of load.

The. invention embodies a construction and assembly adapted to be interposed in the intake for the motor and includes a valve memln ber operating automatically to regulate the amount of. explosive mixture drawn into the manifold, together with means for regulating the action of the valve member the requirements of practice may require or prefer. The invention consists in the details of construction and in the combinaton and arrangement of the several parts of my improved governor throttle whereby certain important advantages are attained and the device rendered simpler, less expensive and i'otherwise more convenient and advantageous for use, as will be hereinafter more fully setfiforth.

The novel features of my invention will hereinatte" be definitely claimed/ In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein v Figure 1 is a view in elevation illustrating a governor throttle constructed in accordance with an embodiment of my invention and in applied position;

Figure 2 is a View in elevation of the throttle as herein embodied with one of thecasing plates removed;

Figure 3 is a sectional view taken through the assembled throttle as herein disclosed and substantially on the line 3-3 of Figure 2;

Figure 4 is a sectionl View of the assembled throttle taken substantially on the line t t of Figure 2;

Figure 5 is a view in top plan of a throttle constructed in accordance with a further embodiment of my invention;

Figure 6 is a view partly in elevation and partly in section of the throttle as illustrated in Figure 5, one of the casing plates being removed Figure 7 is a sectional view taken substantially on the line 77 oi Figure 6; l

Figure 8 is a sectional view taken substantially on the line 8-8 of Figure 6.

In the embodiment of my invention as illustrated in Figures 1 to 4 of the aceompanying drawings, my improved throttlecomprises a casing C consisting of two overlying plates 1 and 2 maintained in desired assembled relation by the screws 3 or the like. The assembled throttle when in applied or working position is interposed in the intake A leading from the carburetor l) to the manifold of an internal combustion engine. The applied throttle is maintained in such position by a bolt 4 or the like disposed through the opposed flanges 5 of the carburetor B to the intake A and a suitably positioned opening to provided in an end portion of the assembled casing C.

The central portions of the plates 1 and 2 have their opposed faces cutout torprovide a F valve chamber 6 through which a fuel mixture is adapted to be drawn from the carburetor B into the intake A, the opposed walls of said chamber 6 being provided with the openings 7 in suitable register with the intake and the carburetor.

Opposed faces of the plates 1 and 2 to one side of the chan'iber 6 are recessed to form an elongated chamber 8 in which is arranged for swin ing movement a rock arm 9. This arm 9 atone end portion is provided with oppositely disposed trunnions IO rotatably engaged within thebearings 11 provided in opposed faces of the plates 1 and 2. The inner trunnion 10 is continued by an arm 12 extending within the valve chamber 6, the outer portion of said arm 12 carrying a disc-like valve member 14.

' Movement of the valve member 14 toward or from the discharge or eduction opening 7 will readily regulate the flow of explosive mixture from the carburetor B into the intake A and thereby providing means for governing the motor speed when the motor is under or free of load.

Thein'ner end portion of the arm 9 has anchoredthereto. as at 15, end portions of elongated spring members 16 and 160, said springs being at the face of the arm 9 opposed to the plate 1 provided with the dis- -tor than would be possible with the use of only a single spring. By having the screw 17 threaded through the nut 18 an effective adjustment for different speeds is assured.

By loosening the screw nut 18 the extent of insertion of the screw 17 within the chamber 8 may be regulated as desired and upon tightening the screw nut 18 said screw 17 will be efltectively locked in desired adjusted position. This locking action is due to the fact that the threaded shank of the screw nut 18,

or the opening 19in the plate 2 in which the screw nut engages, is tapered. If preferred, both the threaded shank and the opening may be tapered.

Insertible through the plate 1 for contact with the outer end of the arm 9 is a screw 20 the same being threaded through a splitiscrew nut 21 whereby the screw 20 is maintained in desired adjustment in the same manner as just stated with respect to the screw 17.

These screws 17 and 20 provide means to regulate the maximum opening and closing movement of the valve member 14:, and to regulate the pickup before the valve member closes.

The outer ends of the nuts 18 and 21 are formed to provide relatively large heads whereby a suitable implement may be engaged therewith for turning the same.

The arm 9 at a predetermined point intermediate its end has threaded therethrough a headed screw 22 and the plate 1 is provided with an opening 23 to permit ready access to said screw.

The inner end of the screw 22 has contact with the inner portion of the springv 16a and upon propermanipulation of the screw 22 the tension of the springs 16 and 160, may be made stronger or weaker as may be desired for higher or lower compression motors.

In the embodiment of my invention as particularly illustrated in Figures 1 to 4: inclusive, the necessary adjustments can be made cxteriorly of the throttle and which is of especial advantage in connection with Ford motors or any other motor with four cylinders or more that is mounted for power; but in the type of throttle employed for trucks and the like where the desired speed limit should be substantially permanent, it is found in practice of advantage to employ the type of throttle illustrated in Figures 5to 8 inclur sire wherein an edge wall, preferably the top of the chamber 8, is cut away and adapted to be closed by a removable late 24, one end of which being provided wlth an extension or lip 25 to interlock with the assembled casing plates 1 and 2. The opposite end portion of the plate 24 is held to the assembled plates 1 and 2 by the screws 26, the heads of which being adapted to have engaged therewith a sealing wire 27.

The spring members 16 and 16 in this embodiment of the invention have direct and constant contact with the plate 2.

The outer end portion of the arm 9" is slotted, as at 28, whereby the same may be later ally contracted by a headed bolt 29. Convenient access is had to this bolt 29 for proper manipulation upon removal of the plate .24. With the plate 24 removed access may also be had to the head of the screw 22 for adjusting the same with respect to the springs 16 and 16".

Withthe plate 2 1 removed access may also be had to the heads of-the screws 30 and 31 carried by the outer portions of the arms 9. These screws 30 and 31 are disposed in opposite directions and coact respectively with the plates 1 and 2' whereby the extent of movement of the arm 9 in either direction may be regulated in accordance with the requirements of practice. The screws 30 and 81 are disposed through the slot 28 and upon requisite-manipulation of the headedbolt 29 the outer end portion of the arm 9" may be contracted in a manner to effectively maintain the screws 30 and 31 in the desired adjustment.

In this second embodiment of my invention the'assemblcd plates 1 and 2 are provided with the suitably positioned openings 4 whereby the assembled throttle may be properly held between the opposed flanges of, the carburetor and intake. The plates 1 and 2 are maintained in relative assembled relation through the medium of the screws 3'.

The other features of the invention as embodied in this second form are substantially the same as particularly described in connection with the embodiment of my invention as illustrated in Figures 1 to 4 inclusive and for which reason such parts are identified by corresponding reference numerals.

From the foregoing description it is thought to be obvious that a governor throttle constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

This application is partly in continuation of my pending application Serial No. 283,049 filed June 5, 1928. I claim 1. A casing adapted to be interposed in the intake of an internal combustion engine, said casing being provided with a valve chamber having an induction opening and an eduction opening, a valve member within the chamber and supported for movement toward and from the eduction opening of the chamher, a rock arm associated with the valve member, an elongated spring member coaeting with the rock arm and the casing for normally maintaining the valve member open, said spring member being carried by the rock arm, and adjustable tension means carried by the rock arm and engaging the spring for varying the tension thereof, said means being adjustable from the side of the rock arm remote from the spring.

2. A casing adapted to be interposed in the intake of an internal combustion engine, said casing being provided with a valve chamber having an induction opening and an eduction opening, a valve member Within the easing and supported for movement toward and from the eduction opening of the chamber, a

rock arm associated with the valve member, elongated spring members in superimposed relation secured to said arm adjacent the inner end thereof for normally maintaining 5 the valve member open and a screw threadably mounted in the rock arm intermediate the ends thereof and engaging said spring members whereby to tension said members.

3. A casing adapted to be interposed in the intake of an internal combustion engine, said casing being provided with a valve chamber having an induction opening and an cduction opening, a valve member Within the casing and supported for movement toward and 'from the eduction opening of the chamber, a rock arm associated with the valve member, elongated spring members in superimposed relation mounted on the inner end of the rock arm for normally maintaining the valve memher open, means carried by the rock arm engaging one of the spring members for varying the tension of both the spring-members, an adjustable member in the casing and engaging the rock arm on one side for limiting the swinging movement in one direction, and a second adjustable member in the casing and engaging one of said spring members whereby to yieldably limit the swinging movement of the rock arm in the opposite direction.

I In testimony whereof I hereunto aflix my signature.

MARCUS DEAN. 

